Index. 



637 



FORMATION 



Formation, gypseous, of Guasco, 

 550 



of Copiapo, 551 



of Iquique, 577 



— cretaceo-oolitic, of Coquimbo, 

 548, 563 



of Guasco, 551, 562 



of Copiapo, 561 



of Iquique, 578 



Fossils, Neocomian, of Portillo 



Pass, 490 

 of Cumbre Pass, 511 



— secondary, of Coquimbo, 547 

 of Guasco, 550 



of Copiapo, 561 



of Iquique, 578 



— palaeozoic, from the Falklands, 

 440 



Fragments ejected at Ascension, 

 47 



— at the Galapagos Archipelago, 

 125 



— of hornblende-rock in gneiss, 

 423 



— of gneiss in gneiss, 427 

 Fresh-water Bay, 123, 132 

 Freyer, Lieut., on elevated shells 



of Arica, 266 

 Frezier on sea-level at Coquimbo, 



252 

 Fuerteventura, calcareous beds of, 



100 



GALAPAGOS Archipelago, 110 

 — parapets round craters, 94 



— pseudo-dikes of, 440 

 Gallegos, Port, tertiary formation 



of, 385 

 Garnets in gneiss, 426 



— in mica slate, 445 



— at Panuncillo, 539 

 Gaudichaud, M., on granites of 



Brazil, 427 

 Gay-Lussac on the expulsion of 



carbonic acid gas, 9 

 Gay, M., on elevated shells, 239 

 ■ — on boulders in the Cordillera, 



293, 297 



— on fossils from Cordillera of 

 Coquimbo, 550 



GRYPH^A 



Gill, Mr., on brickwork transported 

 by an earthquake- wave, 272 



Gillies, Dr., on heights in the Cor- 

 dillera, 482 



— on extension of the Portillo 

 range, 499 



Glaciers, their structure, 80 

 Glassiness of texture, origin of, 70 

 Glen Ptoy, parallel roads of, 260 



— sloping terraces of, 295 

 Glossnpteris Broivnii, 147 

 Gneiss, with a great embedded 



fragment, 149 



— derived from clayslate, 168 

 ■ — near Bahia, 422 



— of Pao de Janeiro, 425 



— decomposition of, 427 

 Gneiss-granite, forms of hills of, 



160 

 Gold, distribution of, 581 

 Good Hope, Cape of, 1(56 " 

 Gorges, narrow at St. Helena, 103 

 Gorodona, formations near, 332 

 Granite, junction with clayslate, 



at the Cape of Good Hope, 167 



— axis of, oblique to foliation, 453 



— andesitic, 478 



— of Portillo range, 494 



— veins of, quartzose, 454. 529 



— pebble of, in porphyritic con- 

 glomerate, 559 



— conglomerate, 567 

 Granitic, ejected fragments, 47, 



125 

 Grauwacke of Uspallata range, 516 

 Gravity, specific, of lavas, 132-140 

 Gravel at bottom of sea, 214, 225 



— formation of, in Patagonia, 2 1 9 



— means of transportation of, 224 



— strata of, inclined, 515 

 Gravel-terraces in Cordillera, 290 

 Greenough, Mr., on quartz veins, 



464 

 Greenstone, resulting from meta- 

 morphosed horn blende-rock, 432 



— of T. del Fuego, 444 



— on the summit of the Campana 

 of Quillota, 471 



— porphyry, 473 



— relation of, to clayslate, 473 

 Gryplia-a orlentalis, 542 



